I have , a sub form in main form with the general services, and medical services

and their costs. their addition  reflect in to total.

sub form all rows addition shown in the grand total of main form.

i am getting deletion of row.

and i am not getting the sub total , and grand total when i remove the general service,

or medical service with in a row   

the total and grand total are showing the same values before removal of general service value.

if i make user input of general sevices null in deletion then addtion will show null in grand total and total.